An article I worked on has recently been published on MSDN. The article, Configuring and Deploying Anonymous Publishing Sites for SharePoint Server 2007, covers things you should consider both in the early and late stages of a Publishing site project.
Here's the article summary on MSDN:
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Explore and learn how to address security and performance issues of Microsoft Office SharePoint Server 2007 publishing sites before launching them as Internet-facing publishing sites.